In 1885-1890, on the border with what was then the Austro-Hungarian Empire, the army of Tsarist Russia built a huge defensive fortress that survived two World Wars and still impresses with its vast scale. Three levels of the construction are above ground and three below, containing the remains of barracks, connected by a web of passageways and tunnels, captivating and intriguing generations of tourists.

This ancient city of the historic region of Volin has 29 notable architectural monuments, making up the Dubno Historical-Cultural Reserve. However, the most outstanding attraction of the city is the impregnable Dubno castle, dating from 1492, with not only its defensive ramparts and bastions but also the Ostrozky and Liubomorsky palaces (from the 16th and 18th centuries, respectively). In the city, you can see the former Church of the Bernardine monastery (1627), Lutsk gate (16th century), the Carmelite monastery (17th century), the Holy Transfiguration Church (1643), and the synagogue (19th century).

This is the location of the world-famous “Tunnel of Love”, a botanic phenomenon, created from a dense growth of over-arching trees and bushes around a narrow-gauge railway. Thanks to the picturesque, romantic appeal of this place it is a magnet for tourists, especially couples, who come here to enjoy a walk through this mystical tunnel.